[ericehsbrown]

Good call on the steam holes on the 400. I have to agree with your point on the coolant problems. I have herd some horror story's of motors never running cool. I still say . . . i would build a 400 or a 350 before a 307 any day of the week. However you rearly see a 307. might be a cool build.

[lg1969]

I hear regular gas in going up to $5.00 a gallon this summer. If daily driven car I suggest of hanging on the 307 and careful what size cam you going to use. Better start thinking of getting a Fuel efficient car. Before building a 400.
Be warned.

[camaro71633]

I have decided to leave the 307 alone for now and build the 400.

lg1969: This car is just a weekend toy I have a honda for a daily. The camaro is just more fun to drive. I hear ya about the gas prices though, if it keeps up I wont be able to afford to drive my honda and it gets 37 mpg

[lg1969]

You and me the same, my friend. My chevelle is just a weekend toy, too.

[ezobens]

I'm still wondering why you went to the effort of replacing an entire motor (307 in place of the 350) when all the 350 needed was a new timing chain?

[camaro71633]

I didn't know it only needed a timing chain at the time. That and I had no idea on the history or mileage on the 350. Looking back I guess should have pulled the timing cover with the motor in the car and just put a timing chain and cam in it.

[Bryan59EC]

I'm gonna be running a basically stock 307 and a 5-speed in my 66 Elky.
Gonna run that motor til it quits.

Then---I'm gonna be looking for a roller 305

Currently looking for a roller 302 for my Ranchero